Fan



FIG. 1 is a perspective view of the fan.

FIG. 2 is another perspective view of the fan.

FIG. 3 is a top view of the fan.

FIG. 4 is a side elevation view of the fan.

FIG. 5 is a bottom view of the fan.

FIG. 6 is a front elevation view of the fan; and,

FIG. 7 is a rear elevation view of the fan.

The broken lines illustrate portions of the fan that form no part of the claimed design. 

CLAIM The ornamental design for a fan, as shown and described. 